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Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
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Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
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Tetrahedral Complexes
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Two structurally new Lindqvist hexaniobate-templated silver thiolate clusters.

Zichen Zhao1, Mengyun Zhao1, Lan Deng1

  • 1MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China. hlv@bit.edu.cn.

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New silver thiolate clusters templated by Lindqvist hexaniobate anions were synthesized. These clusters show promising photothermal conversion and temperature-dependent emission properties.

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Area of Science:

  • Inorganic Chemistry
  • Materials Science
  • Nanotechnology

Background:

  • Silver thiolate clusters are a rapidly developing area of research.
  • Lindqvist hexaniobates serve as versatile templates for cluster synthesis.
  • Understanding structure-property relationships in these clusters is crucial for applications.

Purpose of the Study:

  • To synthesize novel Lindqvist hexaniobate-templated silver thiolate clusters.
  • To characterize their structures and assembly behaviors.
  • To investigate their photothermal conversion and emission properties.

Main Methods:

  • Facile one-pot solvothermal synthesis.
  • Single crystal X-ray diffraction analysis.
  • Photothermal conversion and temperature-dependent emission measurements.

Main Results:

  • Two new clusters, Ag45 and Ag41, were successfully synthesized.
  • Structures revealed Lindqvist [Nb6O19]8- anion templates with iPrS- and CH3COO- ligands.
  • Ag45 formed 2D assemblies, while Ag41 formed 1D chains.
  • Both clusters demonstrated photothermal conversion and temperature-dependent emission.

Conclusions:

  • The study presents novel hexaniobate-templated silver thiolate clusters with unique assembly structures.
  • These clusters exhibit interesting photothermal and luminescent properties.
  • The findings open avenues for designing functional silver nanoclusters.